One thing to keep in mind is that the FUDmonger wants to appear to be the sane voice of reason while painting the FUDee as just this bunch of nuts with no product plan and no source of support. If you fly off the handle at the lies that the FUDmonger is spreading, you are playing into the FUDmonger's hands. After all, remember the whole purpose of FUD: to paint the opposition as unreliable and as something you don't want to base your business upon. Remember: Every Linux advocate who reacts negatively to FUD attacks reduces the credibility of Linux as an enterprise solution.